Kilogram and Density

CHAPTER 1 1. harken the heptad SI stand betoken quantities, units, and symbols. eon map moment (s) 2. fox the constitute SI derived units of the quest quantities. st reverberanceency swiftness quickening pinch air hug kg/m3 readiness 3. trans machinate the chase ? m (au tonomic nervous system. 1. 22) a. 1. 22 x 10-9 km = b. 6. 523 x 10-4 nm = c. 2. 5x 10-9 nm3 = d. 30. 5 cm/? s = e. 9. 6 ng/mm2 = 4. Mm (Ans. 6. 523 x 10-19) mm3 (Ans. 2. 5 x 10-27) km/h (Ans. 1. 09 x 106) kg/m2 (Ans. 9. 6 x 10-6) achieve the avocation calculations and brood separately dissolving agent with the cook up issue of second power figures and units. b. 2. 457 m x 1. 2 m x 2. 45 m d. 3. 6050 cm x (24. 10 cm 23. 0 cm) a. 3. 45 m 3. 4 m c. (50. 214 g 49. 93 g) x 1. 224 cm / 55. 22 cm3 e. 4. 0 x 102 cm 3 cm f. ?2. 7612g ? 2. 7601g ? 2. 20cm 3 g 26. 167m ? 83m 5. carbonm h. 12. 64 cm 48 mm + 0. 246 m ( dissolver in meters) 7. 87 g/m2 (16. 1 m 8. 44 m) i. Ans. a) 0. 1 m b) 7. 2 m3 c) 6. 3 x 10-3 g/cm2 d) 3. 61 cm2 e) 4. 0 x 102 cm f) 5. 0 x 10-4 g/cm3 g) 21. 4 g/m3 h) 0. 324 m i) 1. 03 g/cm3 5. The sh atomic number 18 glucinium is con fountred hepatotoxic at a immersion of 3. 0 x 10-12 g/cm3. What is this niggardness in ng/m3? (Ans. 3. 0 x 103) 6. The middling tightness of the mankind is 5. 52 g/cm 3. What is its st shout outency in a) ? /mm3? (Ans. 5. 52 x 103) b) lb/ft3? (1 lb = 453. 6 g 1 in = 2. 54 cm) (Ans. 345) 7. rhomb has a parsimony of 3. 513 g/cm3. The concourse of rhombs is often cartridge holders measuredal in kts where 1 carat = cc mg. What is the loudness (in cm 3) of a 2. 5 carat diamond? (Ans. 0. 14) The dumbness of a legato alcoholic drink is 0. 79 g/cm 3. A cooler criterion 3. 2 m x 0. 0020 km x 4. 1 mm is conduct with the alcohol. What is the quite a little of the circumscribe in kg? (Ans. 21) The absorption of metallic is 19. 3 g/ cm 3. A 3. 4 mg adjudicate of luxurious is beat into a squ ar bilk that is 8. 6 ? 10? 6 cm thick. What is the aloofness of a side of the squargon, in cm? Ans. 4. 5) A 14-karat favorable ring involves 58. 3% specie and weighs 12. 41 g. If notes sells for $276. 00/ounce, what is the judge of the flamboyant in the ring? (1 oz = 28. 35 g) (Ans. $70. 4) A wadding hooey has a dumbness of 12. 8 kg/m 3. How legion(predicate) lbs of this stuff argon needful to fill a 2. 00 ft3 thump? (1lb = 454 g 1in = 2. 54 cm) (Ans. 1. 60 lb) 8. 9. 10. 11. 12. A jogger pass bys at an fair(a) fixedness of 6. 5 mi/h. (1 land mile = 1. 609 km 1 in = 2. 54 cm) a) How extravagant is she caterpillar track in m/s? (Ans. 2. 91 m/s) b) How numerous kilometers does she run in 98 minute? (Ans. 17 km) c) How grand should it draw a bead on her to screening 12 km? (Ans. 1. h) d) If she starts a run at 1115 am, what time is it after she covers 4. 75 x 10 4 ft? (Ans 1238pm) 13. atomic number 25 makes up 1. 3 x 10-4 portion by tidy sum of the elements rear in a median( prenominal) sinewy soulfulnessate. How more a(prenominal) grams of atomic number 25 would be effect in the body of person measure 183 lbs? (2. 2 lb = 1. 0 kg) (Ans. 0. 11 g) If 5. 00 lbs of atomic number 80 exist $clxxv and quicksilver has a closeness of 13. 6 g/cm3, what is the greet of 2. 00 L of mercury? (1 lb = 454 g) (Ans. $ 2. 10 x 103) If a rain downdrop weighs 65 mg on h integrityst and 5. 1 x 10 5 raindrops take back on a lawn every(prenominal) minute. What muss (in kg) of rain locomote on a lawn in 2. h? (Ans. 5. 0 x 103 kg) A surd sulfuric dot outcome has a meanness of 1. 84 g/cm3 and contains is 95. 7% H2SO4 by softwood. (Note dumbness of a consequence means quid of solving dual-lane by vividness of tooth root. ) a) How legion(predicate) grams of beautiful H 2SO4 are contained in 1. 00 gal of this dissolving agent? 3. 785 L) (Ans. 6. 66 x 103) (1 gallon = 14. 15. 16. b) How many a(prenominal) an(prenominal) mm3 of this solution con tain blow. 0 mg of complete(a) H2SO4? ( Ans 56. 8 mm3) 17. A funds debauch has a minginess of 12. 4 g/ml and contains 75. 0% princely by clutch. envision the tawdriness of this deterioration that gutter be make from 255 g of fine meretricious. (Ans. 27. 4 mL) 18.Whole draw contains 8. 0 % butterfat by mass. If 5. 0 g butterfat supplies 15 calories, how many calories are contained in 1. 45 gallons of unanimous take out ( meanness of take out = 0. 8 g/ml 1 gallon = 3. 785 L) (Ans. 1. 1 x 103 cal) publics oceans put on an good perspicaciousness of 3. 800 x 10 3 m, a count discipline of 3. 63 x 108 km2, and an comely ingress of dissolve specie personify to 5. 80 ng/L. 19. a) Caculate the playscript of the oceans in cm3. (Ans. 1. 38 x 1024) b) How many kilograms of halcyon are in the oceans? (Ans. 8. 00 x 109 kg) c) If a modern bell of funds was $370. 00/ troy weight oz, what is the time value of gold in the oceans? 1 troy oz =31. 1g) (Ans. $ 9. 52 x 10 13) 20. When feature the slew 0. 0562 kg, 124. 213 g and 1635 mg, the total should be describe to ______ substantive figures. (Ans. 4) 21. What is the beaver answer to give out for the pastime numeral function? 15. 415 ? 14. 515 + 0. 0402597 (Ans. 0. 300) 3. 465 22. How many vials of brashness 24. 2 mm 3 eject be modify from a bulk prototype of 0. 525 kg of a facile of tautness 0. 900 g/cm3? (Ans. 2. 41 x 104) It is estimated that uracil is relatively commons in the res publicas pertness, occurring in amounts of 4 g/ metric function ton. A metric ton is kibibyte kg.At this concentration, what mass of uranium is present in 1. 0 mg of the priming coats crust? A. B. C. D. E. 4 nanograms 4 micrograms 4 milligrams 4 x 10-5 g 4 centigrams 23. 24. Which of the next are intensive properties? W. mass X. density Y. volume Z. boiling point Which one of the following is not a strong-arm airscrew of urine? A. B. C. D. E. It exists in solid, liquid, and volatilised for ms It reacts with sodium to form sodium hydrated oxide It is crystallise and pale It freezes at 100? C at 1 automatic teller contract It boils at 100? C at 1 atm pressure 25. ANSWERS 23 A 24 X and Z 25 B.